Download NAME REVIEW 1: JUST THE BASICS ___1) In which material are

NAME _______________________________________ REVIEW 1: JUST THE BASICS
___1) In which material are the particles arranged
in a regular geometric pattern?
1) CO2(g)
2) NaCl(aq)
3) H2O(l)
4) C12H22O11(s)
___2) Which formula correctly represents the
composition of iron(III) oxide?
1) FeO3
2) Fe2O3
3) Fe3O
4) Fe3O2
___3) Given the reaction:
___7) Which statement is true for any
electrochemical cell?
1) Oxidation occurs at the anode only
2) Reduction occurs at the anode only
3) Oxidation occurs at both the anode and
the cathode
4) Reduction occurs at both the anode and
the cathode
___8) Which statement correctly describes an
endothermic chemical reaction?
1) The products have higher potential energy
than the reactants and the ∆H is negative
PbCl2(aq) + Na2CrO4(aq) 
PbCrO4(s) + 2 NaCl(aq)
What is the total number of moles of NaCl
formed when 2 moles of Na2CrO4 react
completely?
1) 1 mole
2) 2 moles
3) 3 moles
4) 4 moles
___4) Which would be an isotope of K-42?
1) K-39
2) Na-23
3) K-42
4) Mo-96
___5) Which of these terms refers to matter that
could be heterogeneous?
1) element
2) mixture
3) compound
4) solution
___6) In which substance does chlorine have an
oxidation number of +1?
1) Cl2
2) HCl
3) HClO
4) HClO2
2) The products have higher potential energy
than the reactants and the ∆H is positive
3) The products have lower potential energy
than the reactants and the ∆H is negative
4) The products have lower potential energy
than the reactants and the ∆H is positive
___9) Given the equation:
2 Al + 3 Cu2+  2 Al3+ + 3 Cu
The reduction half-reaction is:
1) Al  Al3+ + 3 e-
3) Al + 3e-  Al3+
2) Cu2+ + 2 e-  Cu
4) Cu2+  Cu + 2e-
___10) Which 0.1 M solution contains an
electrolyte?
1) C6H12O6(aq)
2) CaCl2(aq)
3) C12H22O11(aq)
4) CH3OCH3(aq)
___11) The percent by mass of calcium in the
compound calcium sulfate (CaSO4) is
approximately
1) 15%
2) 29%
3) 34%
4) 47%
___12) The formula C4H8 is an example of
1) molecular formula
2) empirical formula
3) ionic formula
4) structural formula
___13) The nucleus of which atom contains 48
neutrons?
1) S-32
2) Ti-48
3) Rb-85
4) Cd-112
___14) The atomic mass unit is defined as exactly
1/12 the mass of an atom of
1) C-12
2) C-14
3) Mg-24
4) Mg-26
___15) Which substance is a binary compound?
1)
2)
3)
4)
argon
carbon tetrachloride
glucose
sodium hydroxide
___16) Which ion has the largest radius?
1) Na1+
2) Mg2+
3) K1+
4) Ca2+
___17) One mole of O2 has approximately the
same mass as one mole of
1) CH4
2) S
3) LiH
4) Cl2
___18) Consider a 10. Liter sample of He(g) in a
rigid container, with a moveable piston.
As the pressure increases, the volume,
1) decreases
2) increases
3) remains the same
___19) As the elements in group 17 are studied
in order of increasing atomic number, the
nonmetallic reactivity of each successive
element
1) decreases
2) increases
3) remains the same
___20) Using Table I, which synthesis absorbs
more energy than is released?
1) HI
2) Al2O3
3) NH3
4) C2H6
___21) Given the equilibrium reaction in a closed
system:
H2(g) + I2(g) + 53.0 kJ  2 HI(g)
What will be the result of an increase in
temperature?
1) The equilibrium will shift to the left and
[H2] will increase
2) The equilibrium will shift to the left and
[H2] will decrease
3) The equilibrium will shift to the right and
[HI] will increase
4) The equilibrium will shift to the right and
[HI] will decrease
___22) Which is the formula for copper (II) sulfate?
1)
2)
3)
4)
CuS
CuSO2
Cu2SO4
CuSO4
___23) In Period 3, from left to right in order, each
successive element will
1)
2)
3)
4)
decrease in electronegativity
decrease in atomic mass
increase in number of protons
increase in metallic character
___24) What is the most correct name for the
molecule, SO3?
1) sulfur oxide
2) sulfur (III) oxide
3) sulfur trioxide
4) sulfur (I) oxide
___25) Which structural formula is incorrect?
H
|
1) H―C―Cl
|
H
H
2)
H
C= C
H
H
O
||
3) H―C―OH
H H
| |
4)
C = C―C―H
H
| |
H H
H
Answers
1) 4) C12H22O11(s) definition of a solid
2) 2) Fe2O3
The (III) refers to the positive oxidation state of the iron.
3) 4) 4 moles
4) 1) isotopes are of the same element, but with different mass numbers. Thus they have the same symbol (due to the
fact they have the same number of protons), but they have a different number of neutrons.
5) 2) mixture
6) 3) HClO
7) 1) Oxidation occurs at the anode only
8) 2) The products have higher potential energy than the reactants and the ∆H is positive
9) 2) Cu2+ + 2 e-  Cu
10) 2)
11) 2) 29%
12) 1) a molecular formula
13) 3) Rb-85
14) 1) C-12
15) 2) CCl4
16)
17)
18)
19)
3) K1+
2) S
1) decreases
1) decreases
20) 1) HI it is produced endothermically and that means more energy is absorbed by the breaking of bonds than is
released as the new H-I polar covalent bond(s) is (are) produced. Thus HI is less stable than the reactants.
21) 3 an increase in temp favors the endo. rxn which in this case is the forward rxn.
22) 4) it requires only 1 sulfate polyatomic ion for every 1 copper (II) ion
23) 3) increase in number of protons
24) 3) it is a binary molecule so use the prefix
system
25) 4)
H
H
H H
| |
C = C―C―H
| |
H H
Moving from the left to the right along the carbon chain you can see that the first C has 6 bonds, the second carbon has 5
bonds, while the third carbon has only 2. Carbon will make have 4 bonds, due to the Lewis structure (see your notes on
promotion, under Lewis Structures and / or Wave Mechanics